I don't think stats have appeared for it. Here is something on short notice I whipped up.
Remora (Snow-Devil, Yakhmar, Frost Worm)
Huge Magical Beast (Cold)
Hit Dice: 14d10+70 (147 hp)
Initiative: +10 (+1 Dex, +9 Ref)
Speed: 30 ft. (6 squares), burrow 10 ft.
Defence Value: 19 (–2 size, +1 Dex, +10 natural)
Damage Reduction: 10 (+1 fur, +1 gelid body, +8 cold)
Base Attack/Grapple: +14/+30
Attack: Bite +21 melee (2d8+12 plus 1d8 cold)
Full Attack: Bite +21 melee (2d8+12 plus 1d8 cold)
Space/Reach: 15 ft./10 ft.
Special Attacks: Trill, cold
Special Qualities: Darkvision 60 ft., death throes, immunity to cold, low-light vision, vulnerability to fire
Magic Attack: +7
Saves: Fort +14, Ref +10, Will +6
Abilities: Str 26, Dex 13, Con 20, Int 2, Wis 11, Cha 11
Skills: Hide +3*, Listen +5, Spot +5
Feats: Alertness, Improved Initiative, Improved Natural Attack (bite), Iron Will, Weapon Focus (bite)
Environment: Cold plains, Snow-Devil Glacier (Eiglophian Mountains)
Organization: Solitary
Advancement: 15–21 HD (Huge); 22–42 HD (Gargantuan)
Then in the gloom before him opened two cold green eyes, which stared into the roots of his soul. These luminous orbs cast a gelid, submarine light of their own. By their faint, fungoid phosphorescence, he could that there the cavern ended in a round well, which was the ice-worm's nest. Coil on undulating coil, its immense length was curled in the hollow of its nest. Its boneless form was covered with the silken nap of thick white fur. Its mouth was merely a jawless, circular opening, now puckered and closed. Above the mouth, the two luminous orbs gleamed out of a smooth, rounded, featureless, eel-like head.
~ L. Sprague de Camp and Lin Carter, The Lair of the Ice Worm
The remora is the vampiric worm of the ice-lands, an almost forgotten whisper of horror in Cimmerian myth. A remora has glowing green eyes, a worm-like gelid body, a featureless eel-like head with a jawless, round opening for a mouth. Inside the mouth is a raspy, many-toothed tongue. Its body is covered with thick, white fur. It cannot burrow through stone, but can manage ice and frozen earth. When moving through such hard materials it leaves behind a usable tunnel about 5 feet in diameter. A remora is about 40 feet long, 5 feet in diameter, and weighs about 8,000 pounds. The remora has no soul or mind – just a remorseless hunger. It is a nocturnal hunter.
The creature is known as a remora to the Cimmerians, a snow-devil to the northern races and a yakhmar to the Hyperboreans. Certain mystical texts claim these creatures are native to another world (such as Ganymede). Its blood resembles liquid oxygen and its interior may well be frozen oxygen. Anything coming into contact with its blood may become brittle enough to shatter. Conan, in an apocryphal tale, may have slain one of the pair brought to Earth by elder Hyperborean sorcerers.
Combat
A remora's standard attack is to approach slowly and begin its thin, hellish piping, which entrances its victims and brings the victim safely to the remora. Failing that, remoras may hide under the snow and ice until they hear movement above them, then attack from below and surprise prey.
Cold (Ex): A remora generates cold so intense that anything touching its body takes 8d6 points of cold damage. The damage is almost identical to a burn. Anything killed by the remora is frozen solid. Anyone approaching within 60' of the remora takes 1 point of cold damage per round as ice forms on their bodies. Creatures striking a remora with natural attacks or unarmed attacks are subject to this damage, but creatures striking with melee weapons only take 1d8 points of damage from the remora’s cold. The intense cold causes opponents to take an extra 1d8 points of cold damage every time the creature succeeds on a bite attack. This cold can weaken weapons; any weapon that strikes a remora is allowed a DC 18 Fortitude save to avoid destruction. The save DC is Constitution-based.
Death Throes (Ex): If killed and if its interior, which may be comprised of frozen oxygen, is exposed to sufficient heat, a remora has a combustion reaction resulting in an explosion that deals 12d6 points of combined fire and cold damage and 8d6 points of piercing damage to everything within 100 feet (Reflex half DC 22). The save DC is Constitution-based.
Trill (Su): The remora can sound a trilling, mind-blowing song which has a lulling, overpowering, narcotic effect. It has the sound of ululating pipes. This sonic mind-affecting compulsion affects all creatures other than other remoras within a 100-foot radius. A character must be awake for the song to have any affect. The target creature(s) must make a Will saving throw (set by the remora's magic attack bonus) or be unable to take any actions other than move toward the remora for as long as the remora trills plus 1d4 rounds afterwards. Any characters who fail their save will move inexorably toward the remora. However, if attacked or violently shaken (a full-round action), a victim is allowed another saving throw. Once a creature has resisted or broken the effect, it cannot be affected again by that same remora’s trill for 24 hours.
Vulnerability to Fire (Ex): Heated weapons (at least red-hot) reduce the remora's damage resistance to 2. Anything heated to red- or white-hot that manages to reach the interior causes the remora to explode into its death throws (see above). Further, the remora takes half again as much (+50%) damage as normal from fire damage, regardless of whether a saving throw is allowed, or if the save is a success or failure.
Skills: *A remora, due to its coloration and its affinity for burying itself in the snow, has a +10 racial bonus on Hide checks in its native environment.